In simplest terms, the rate at which the universe expands on paper doesn’t match actual astronomical observations. That speed ...

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding?

A slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.

A new study suggests the universe may rotate -- just extremely slowly. The finding could help solve one of astronomy's biggest puzzles.

Scientists have since worked hard to pinpoint how fast the Universe is expanding, and how long ago the Big Bang took place. It’s a compelling tale, with lots of twists and turns. But ...

The rotating model, which does not break any known law of physics, suggests the universe could spin around once every 500 billion years. This would be far too slowly to detect easily, but enough to ...

A new idea about cosmic expansion has emerged that might remove the need for dark matter and dark energy altogether.

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

I found that cosmologies with such conditions generally predict a universe with accelerated expansion. Cosmic acceleration is a well-established fact, and also one of the most puzzling features of ...